Video lesson · Can / Could / Be Able to
Permission/Prohibition with can refers to using can and can't to give or deny permission in informal situations. Can grants permission, while can't expresses prohibition. This usage of can is commonly used in everyday conversation to establish what is or isn't allowed.
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Can / Could
Be Able to
Present and Future Ability
Skills
Unusual Ability
With Verbs of Senses
Theoretical Possibility
Requests
Offers
Deduction / Negative
Present Use / Summary
Possibility / Ability in the Past
Permission / Prohibition in the Past
With Verbs of Senses / Past
Past Skills
Possibility / Ability in the Past + Fact 
Past Use / Summary
Ability in the FutureGet the app and practice this topic as a game — with XP, streaks and instant feedback.
